Hangar for aerial vehicles



Jan. 15 1924.

F. J. LUEBBERT HANGAR FOR AERIAL VEHICLES Filed Jan. 26, 1922 5 Sheets-Sheet 2 INVENTOR. FJZa eaer Jan. 15 1924.

F. J. LUEBBERT HANGAR FOR AERIAL VEHICLES Filed Jan. 26= 192,2 5 Sheets-Sheet 3 SPN ' INVENTOR. F'JZue' er! `Ian. 15 1924. 1,481,019

F. J. LUEBBERT HANGAR FOR AERIAL VEHICLES Filed gan. 2e, 1922 5 sheets-Sheet 4 Efg 50 n wav: v v 1 A? a4 ql l 63 C3 I 4ck N; v i

Jan. 15 1924. 1,48L09 F. J. LUEBBERT HANGAR FOR AERIAL VEHICLES Filed Jan. 2e, 1922 5 sheets-sheet s a r 5 1f Y il afm/@7 Patented Jan. 15, 1924.

UNITED STATES rnEnEErcn J. LUEBBEET; or SAN rEANcIsco, cALIroENIA.

mean non. annui. vEmcLEs.

Application med January 26, 19:22.# Serial llo. 531,873. y

. To all wlwmz't may concern.

Be it knownthat I, FREDERICK J. Lune; BERT, citizen of the United States, residing at San Francisco, in the couitty of San Francisco, State of California, have invented a spo new and useful Improvement; in Hangars for Aerial Vehicles, of which the following is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to the constructionof a hangar for aeroplanes and dirigible air ships in which the entire inside of the hangar will be free from supporting oles and guys, all of the covering structure Ibeing supported from the outside by means of suitable masts.

This invention relates to a hangar which is an improvement upon the structure disclosed in United States Letters Patent No. 1,313,547, dated August 19, 1919, to W. M. Luebbert.

Another object of the invention is 'topro' vide a support for the covering structure which is capable of carrying either a sheet metal covering or a canvas covering as may be desired.-

Another object of the invention is to provide a cable truss with stiie bars to make it more rigid than it would e were it composed entirely of tension members.

Another object o the invention is to provide a series of openings in the covering structure which .will allow the escape of air duringhstorms to prevent a too great strain upon t e entire structure.

Another object of the invention is to provide rounded ends and sloping sides as well as a sloping roof whereby the structure will -oer less resistance to theI air during storms than would a structure with square ends and vertical sides.

Another object of the invention is to produce a hangar which cambe transported from place to place in small units'not to exceed the capacity of the ordinary ve-ton army truck.

Another object is to produce a supporting structure for the hangar covering which is capable of being set up and taken down independently of the covering thereby-making it possible to put the coverlng in position with the minimum of effort and with unskilled labor.

Other objects of the invention will appear as the description proceeds.

An embodiment of the invention is shown in the accompanying-drawings in which the same reference numeral is applied -to the same portion throughout, but I am aware that there may be modiiications thereof.

Fig.' 1 is a perspective view ofthe masts and bracing without the covering.

Fig. 1*l is a side elevation of the complete structure, showing a structure with a longer span between the masts than the perspective view.

Fig. 2 is an end view of the structure with some of the cables' removed and with the covering at 'one end removed.

, Fig. 3 -is a detail view of one of the anchor bolts used for supporting the masts.

Fig. 4' is -aplan view of the complete hangar.

Flg. 5 is a side elevation on an enlarged scale of one of the side trusses.

Fig.6 is a plan view o f-.one of the Aoverlapping side plates looking from the inside. ig. 7 is an outside plan view of one of the overlapping cover plates. l

Figures 8 and 9 are detail viewsof the clamp washers with raised portions for connection to one of thecables.

Figures 10 and 11 are detail views of one of the fiat clamp washers used Vfor holding the metal sheet edges in place.

Fig. 12 is a side eleva ion o f one-of the clamps used, the lead washer for preventin` leakage being shown thereon.

, ig. 12a is a perspective view of the double cable clamp used.

Figures 13 and 11i-are respectively a side elevation and sectional view of a portion of the roof of thehangar showing tachable doors for reducing the `wxnd'pres- 15 is a plan view of one of the masts 'bracing members extending from the outer mastto the central mast.

This hangarhas two sets of -tubular masts 1 to 6 inclusive. 'Ijhe masts 2 and 5 have three sets of flanges, while the'masts at the outer corners ofthe hangar have two sets of flanges.

the de- Thesei'iangesareeonstructedasillue' trated in Figure 16. The separate parts of the tubular masts each have flanges at their ends as shown at 7 and 8, said flanges have suitable perforations to receive bolts or shackles to connect them to the next adjacent tubular member.

Intermediate the ends of the mast the flanges are bolted together as illustrated at the lower portion of Figure 16, a plate 9 being inserted between the anges 7 and 8 for the purpose of carrying the holes for securin the guy wires and cables to the mast;

also or securing suitable bracing when required.

Each of the corner masts is provided withV an Outrigger as indicated at 10 to 13 inclusive. These outriggers are suitably braced by means of cables 14 and 15 connected to the top and lower portion of each mast. The corner posts are also connected to the longer center posts by means of heavy braces 16 to 19 inclusive 'which are inclined on substantiallythe same slope as the slope of the roof of the hangar. The corner masts are connected by four cables 20 to 23 inclusive, two of which cables are also suitably connected to the masts 2 and 5. A cable truss consisting of the longitudinally extending cables 25, 26, 27, compression members 28, 29, 30, diagonal bracing 31,' 32 and vertical cable bracing 34, 35, 36 connecting the upper cable 25 to the intermediate l cable 26.

tachedto the corner masts.

The result of the foregoing construction is that there is a tension truss suspended from the two center posts 2 and 5, the upper member of said truss being more or less catenary shaped. These two center masts are braced against movement longitudinally of the hangar by means of two cables 37, 38 at each end.

Each of the corner posts in pairs is provided with a tension truss consisting of the cables 23, 39, 40 and 21, 41, 42. The cables 40, 41 lie in a horizontal plane and are connected at their ends to the outriggers at- The cables 39,

42 are attached to the up er portion of the corner masts and swing ownwardly therefrom and by reason of the strain on the cross cables 43 to 47 inclusive which are attached atan intermediate point to said cables 39.40, and at an intermediate point to the cables 23, 21 their ends being` attached to the cables 40, 41 produce a tension truss capable o holding the sides of the hangar straight and also capable of preventing the eaves from dropping down.

The corner masts are each braced by cables 48, 49, and two cables 50, 51 are connected to each Outrigger and to suitable anchorages to prevent-the outriggers from being displaced. In order to give additional stiffness, to the side trusses formed, each corner mast has two bracing cables 52, 53

connected to -its upper end and to the cable 23, and each Outrigger has a bracing cable 54 connected to its Outer end and to the cable 23.

, Inside the roof the center truss is also provided with bracing cables 55, 56 which are connected at their upper ends t'o the cable 27 under the compression members 28, 30, and at their lower portion to each of the masts 2 and 5.

Where the cables are anchored in the ground they are connected to a rod 60 havlng a suitable anchor 61 at its lower end, which anchor is placed at the bottom of a hole in which suitable rubble is tanked.

Wherever two cables cross each other suitable double cable clamps 63 are used to connect the cables together, said cable clamps consist of a plate 64 having two short horns 65, 66 and to which the two cables are secured by means of the U-bolt 67.

At the ends of the structure illustrated in Figure 1, the cables are arranged to pass from the top of the center masts downwardly to anchorages illustrated in Figure 1a and as shown at 67', 68, while other cables 69, 70, 71 extend'from an intermediate portion of the-mast to the longer cable bracing for the purpose of supporting the roof.

The center bracing cables 67 at each end are very heavy cables and in order to properly anchor them there is provided the bridle anchorages consisting of a series of pulleys 72 on .the ends of short cables 73,

the arrangement beingl such as to provide after'the short cables a've passed over the pulleys 72 for anchorages at 74 to 79 inclusive, thereby increasing the holding power of the anchorages without increasing their size.

The covering for the hangar consists ot a plurality of metal sheets 80, said metal sheets being of considerable size and arranged to overlap one another at their edges suiciently to shed water. These metal plates lie on the several cables of which there are a suiiicient number of supporting cables such as are shown in Figure 6, added to the structure shown in .Figure 1 to produce the necessary supporting. cables to correspond with thel size of the plates used, for example:` Assuming the cable 45 to be shown in Figure 6, there would be connected to it two longitudinally. extending cables 81, 82 to support the edges of the several plates, and a smaller central Y cable 83 to support the platesV alongl their longitudinal center. turn have their ca les 84, 85 connected thereto and to` other cables of the system.

Whilethe cables 'are connected together by means of the double clamps yshown in Figure 12a, the plates areA connected to the The lon 'tudinal' ca'bles would in in Figure 12. These bolts have two legs 86, 87 with the unual nu ts 88, 89, and in this instance, lead washers 90,91 are used to prevent leakage.

at 92 to provide fastenings to be made to the hanger wherever necessary.

Ordinarily the flat plates 93 are used as illustrated 1n Figure 7 to hold the edges good the slides may be completely removed,

but if it is desired to have ventilation While at the same ktime providing against the ingress of rain, the slides will be placed in position and will shed the rain.

The braces extending from the corner posts. to the center posts consists of two channel irons 98, 99 bolted to a suitable heavy flat plate 10Q-see Eigure 14.

lVhat I claim is as follows, but various Between the legs of` the U-bolt it has a raised portion as shownl modifications may be made in the construction shown in the drawings and above parti'cularl described form, within the purview o my invention.

1. 1n a structure of the class described. comprising Inasts carrying a plurality oi' tension trusses supporting a'plurality ot' intermediate cables, a plurality of overlapping metal sheets forming the roof and side Walls of the hanger, U-clamps along the edges of the plates for securing tho plates to the cables and a retaining plate through which the U-clamps pass and which bear on the side walls.

2. In a structure of the class described. a plurality of posts, outriggers to stifl'en the posts. cable tension trusses, connecting the posts in two directions, the upper chord of the truss being higher at the posts than at the center'l of the truss, other lower posts to support the structure intermediate the first posts, cables crossing each other, means to connect the cable crossing, means to secure a sheet structure to the'crossed cablesI with the edges of the sheet structure overlapping and means to stay the structure from the ground.

In testimony whereof I have hereunto set my hand this 17th day of January, A. D. 1922.

' FREDERICK J. LUEBBERT. 

